package pushObserver;

/**
 * Created by root on 2017/5/4.
 */
public class ConcreteSubject extends Subject {

    private String state;

    public String getState() {
        return state;
    }

    public void change(String newState) {
        state = newState;
        System.out.println("主题状态为：" + state);
        // 状态发生改变时，通知各个观察者
        this.notifyObserver(state);
    }

}
